标题： 近红外成像和建模M100的核心 显示英文标题

标题： NIR imaging and modeling of the core of M100

摘要： 高分辨率近红外和光学图像用于约束棒旋星系M100 (=NGC 4321) 中核区恒星形成(SF)区域的动力学模型。亚角秒分辨率使我们能够区分重要的形态细节，这些细节在使用低分辨率图像时容易被误解。我们在核区K波段图像中观察到的小型前导臂在我们的气体流动模型中得到了再现，并使我们相信部分K波段光来自年轻恒星，这些恒星追踪气体流动。 显示英文摘要

摘要： High-resolution NIR and optical images are used to constrain a dynamical model of the circumnuclear star forming (SF) region in the barred galaxy M100 (=NGC 4321). Subarcsecond resolution allowed us to distinguish important morphological details which are easily misinterpreted when using images at lower resolution. Small leading arms observed in our K-band image of the nuclear region are reproduced in the gas flow in our model, and lead us to believe that part of the K light comes from young stars, which trace the gas flow.